21353464

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{563}}^1$

素因数の和:1011

約数の個数: 32

約数和(自身を含む): 43856640

約数和(自身を除く): 22503176

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 431, 563, 862, 1126, 1724, 2252, 3448, 4504, 4741, 6193, 9482, 12386, 18964, 24772, 37928, 49544, 242653, 485306, 970612, 1941224, 2669183, 5338366, 10676732, 21353464]

約数ペア:

[(1, 21353464), (2, 10676732), (4, 5338366), (8, 2669183), (11, 1941224), (22, 970612), (44, 485306), (88, 242653), (431, 49544), (563, 37928), (862, 24772), (1126, 18964), (1724, 12386), (2252, 9482), (3448, 6193), (4504, 4741)]